Of the 106 choices, six of the sandwiches were rated “Very Good” for nutrition and all of them came from Subway.

The Egg White and Cheese on Mornin’ Flatbread clocked in at 170 calories and 5g of fat.

Meanwhile, testers complained that the cheese in Starbucks sandwiches was “saucelike” and that the eggs in McDonald’s Egg McMuffin sandwiches were rubbery. Others had mediocre muffins or flavourless eggs, the report says.

Fast food chains have been paying more attention to their morning offerings of late, with companies not traditionally known for breakfast launching new menus for the commuter crowd.

Taco Bell, for instance, introduced its FirstMeal menu across the US last month, which includes sausage, egg, steak or bacon burritos.

Market research group NPD, meanwhile, says that the breakfast industry is seeing growth worldwide as an untapped market, especially given that 31 million consumers in the US alone say they skip the most important meal of the day.

To get the most out of your fast food breakfast sandwich, taste testers suggest toasting the bread, skipping the cheese or meat, substituting egg whites for whole eggs, and eating it right away.